docs: def _process_organisms(self, limit):
          """
          The internal identifiers for the organisms in flybase
  
          :param limit:
          :return:
  
          """
  
          if self.test_mode:
              graph = self.testgraph
          else:
              graph = self.graph
          model = Model(graph)
          raw = '/'.join((self.rawdir, 'organism'))
          LOG.info("processing organisms")
  
          line_counter = 0
          with open(raw, 'r') as f:
              filereader = csv.reader(f, delimiter='\t', quotechar='\"')
              f.readline()  # read the header row; skip
              for line in filereader:
                  (organism_id, abbreviation, genus, species, common_name,
                   comment) = line
                  # 1	Dmel	Drosophila	melanogaster	fruit fly
                  # 2	Comp	Computational	result
  
                  line_counter += 1
  
                  tax_internal_id = self._makeInternalIdentifier('organism', organism_id)
                  tax_label = ' '.join((genus, species))
                  tax_id = tax_internal_id
  
                  self.idhash['organism'][organism_id] = tax_id
                  self.label_hash[tax_id] = tax_label
  
                  # we won't actually add the organism to the graph,
                  # unless we actually use it therefore it is added outside of
                  # this function
  
                  if self.test_mode and int(organism_id) not in self.test_keys['organism']:
                      continue
  
                  if not self.test_mode and limit is not None and line_counter > limit:
                      pass
                  else:
                      model.addClassToGraph(tax_id)
                      for s in [common_name, abbreviation]:
                          if s is not None and s.strip() != '':
                              model.addSynonym(tax_id, s)
                              model.addComment(tax_id, tax_internal_id)
  
          return